Question

Use the table below to find a least-square regression line, and then compute the sum of the squared residuals for the least-squares regression line. You can use calculator or formula.

x 3 5 7 9 11 y 0 2 3 6 9

A Linear regression: y ̂ = -3.7x + 1.1 ; Sum of squared residual: 1.6

B Linear regression: y ̂ = 1.1x – 3.7 ; Sum of squared residual: 1.6

C Linear regression: y ̂ = 1.1x + 3.7 ; Sum of squared residual: 1.6

D Linear regression: y ̂ = 3.7x – 1.1 ; Sum of squared residual: 1.6

Answer 1

B Linear regression: y ̂ = 1.1x – 3.7 ; Sum of squared residual: 1.6